15.5 Precision Composite Soil Sampling Explained

We unpack why “precision composite soil sampling” isn’t a contradiction and show how GPS-marked points turn an old method into a reliable trend tool. We cover workflows, gear, timing, and when shifting results should push you toward zones.In this episode we discuss • Pre‑GPS composite sampling and its limits• Marking exact GPS points for repeatability• Keeping post‑harvest or spring timing consistent• Tracking year‑over‑year P, K and pH trends• When composites signal a move to zones• Benchmarks versus wider composite coverage• Core counts for quarters and half sections• Gear tips: external GPS pucks and apps• Faster fieldwork once points are mapped• Starting with GK Field Mapper and ADMS exportsMore info about GK Field Mapper here: https://gktechinc.com/gk_field_mapper/Tune in next time for a tiny bite of knowledge from GK Technology, where we have a map and an app for that!https://gktechinc.com/